A spatial radar scanning device for gas pipeline leakage

Abstract

The present invention discloses a gas pipeline leakage space radar scanning device, which comprises a plurality of laser detectors. The laser detector consists of a laser, a collimator, a detector, a focusing mirror, and a control system electrically connected to the laser and the detector respectively. The laser detector is arranged on an adjustable base, and the laser detector is connected to the adjustable base through an adjusting bracket. The adjustable base is provided with a slideway. The gas detection in the leakage space of the gas pipeline in multiple layers and dimensions is realized through the plurality of laser detectors on the adjustable base, or by adding a beam light shaping device at the end of the collimator, and the laser detector realizes that the emitted beam is in a scattered shape through the light shaping device, so as to realize the gas detection in the leakage space of the gas pipeline in multiple layers and dimensions. The present invention has the advantages of simple structure and comprehensive detection space.

Description

Technical Field

[0001] The present invention relates to the technical field of gas buried pipeline leakage detection, and particularly to a radar scanning device for detecting the leakage space of gas pipelines. Background Art

[0002] The traditional on-site sampling and testing have been realized up to now by applying laser spectroscopy remote sensing technology for long-distance instant measurement.

[0003] At present, the traditional methods have the following problems:

[0004] 1. The spatial measurement ranges of traditional on-site sampling and relatively advanced current automatic pump suction, electrochemistry method, and laser remote sensing technology are single, and only single-point sampling can be achieved, resulting in a large number of spatial blind areas.

[0005] 2. During the measurement process of the vehicle-mounted overhead remote detector, the angle can be adjusted, but only a single direction can be measured at the same time, and spatial blind areas will also appear, resulting in the omission of the measurement of gas leakage points. Summary of the Invention

[0006] The purpose of the present invention is to solve the problems in the prior art, and a radar scanning device for detecting the leakage space of gas pipelines is proposed.

[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0008] A radar scanning device for detecting the leakage space of gas pipelines includes a plurality of laser detectors. The laser detector consists of a laser, a collimator, a detector, a focusing mirror, and a control system electrically connected to the laser and the detector respectively. The laser detector is arranged on an adjustable base, and the laser detector is connected to the adjustable base through an adjustment bracket. The adjustable base is provided with a slideway, and the gas detection in the leakage space of the gas pipeline in multiple layers and dimensions is realized by the laser detector on the adjustable base.

[0009] Or by adding a beam light shaping device at the end of the laser collimator, the laser detector realizes that the emitted beam is in a scattered shape through the light shaping device, so as to realize the gas detection in the leakage space of the gas pipeline in multiple layers and dimensions.

[0010] A radar scanning device for detecting the leakage space of gas pipelines provided by the present invention also has the following technical features:

[0011] For example, in the radar scanning device for detecting the leakage space of gas pipelines provided in an embodiment of the present disclosure, the slideway extends to both ends to the side wall of the adjustable base, and an adjustment bracket that can slide along the slideway is provided on the slideway.

[0012] For example, in the gas pipeline leakage space radar scanning device provided in an embodiment of the present disclosure, grooves are provided on both sides of the inner wall of the slideway, bumps are provided at the connection between the adjustment bracket and the slideway, and the grooves on both sides of the inner wall of the slideway correspond to the bumps on the adjustment bracket.

[0013] For example, in the gas pipeline leakage space radar scanning device provided in an embodiment of the present disclosure, the adjustment bracket includes a fixed part and a sliding part connected to the fixed part. The sliding part is embedded in the slideway and slides along the slideway. A fixed groove is provided on the fixed part, and fixed holes are provided on both sides of the fixed groove. The laser detector is arranged in the fixed groove and fixedly connected by bolts.

[0014] For example, in the gas pipeline leakage space radar scanning device provided in an embodiment of the present disclosure, one end of the housing is threadedly connected to the laser detector, and the other end of the housing is the emission window of the laser detector.

[0015] For example, in the gas pipeline leakage space radar scanning device provided in an embodiment of the present disclosure, the laser detector is in a horizontal linear shape, a vertical linear shape, or an inclined linear shape.

[0016] For example, in the gas pipeline leakage space radar scanning device provided in an embodiment of the present disclosure, the laser detector is circular, rectangular, or elliptical.

[0017] For example, in the gas pipeline leakage space radar scanning device provided in an embodiment of the present disclosure, multiple groups of the laser detectors are spatially distributed, and spatial multi-dimensional scanning can be performed when the multiple groups of the laser detectors move in a direction perpendicular to the scanning direction.

[0018] For example, in the gas pipeline leakage space radar scanning device provided in an embodiment of the present disclosure, the light shaping device realizes the spatial distribution of the detection laser through cylindrical lens scattering, grating interference, single-hole or slit diffraction.

[0019] Compared with the prior art, the present invention provides a gas pipeline leakage space radar scanning device, which has the following beneficial effects:

[0020] 1. Through the present invention, multi-dimensional detection can be simultaneously performed in a space, preventing omission when the laser detector detects gas, and reducing blind spots and leakage points. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the accompanying drawings of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description only relate to some embodiments of the present disclosure and do not limit the present disclosure.

[0022] Figure 1 Control schematic diagram of a gas pipeline leakage space radar scanning device of the present invention.

[0023] Figure 2 Schematic cross-sectional structure diagram of a gas pipeline leakage space radar scanning device of the present invention.

[0024] Figure 3 Schematic structure diagram of an adjustable base of a gas pipeline leakage space radar scanning device of the present invention

[0025] Figure 4 Schematic structure diagram of an adjustable bracket of a gas pipeline leakage space radar scanning device of the present invention.

[0026] Figure 5 Schematic connection structure diagram of an adjustable base and an adjustable bracket of a gas pipeline leakage space radar scanning device of the present invention.

[0027] Figure 6 Stereogram of an adjustable base of a gas pipeline leakage space radar scanning device of the present invention.

[0028] Figure 7 Schematic structure diagram of a laser detector of a gas pipeline leakage space radar scanning device of the present invention.

[0029] In the figure:

[0030] 1. Adjustable base; 2. Slideway; 3. Laser detector; 4. Adjusting bracket; 4-1. Sliding part; 4-2. Fixed part; 5. Groove; 6. Fixed hole; 7. Bump; 8. Housing; 9. Beam light shaping device; 10. Control system; 11. Focusing mirror; 12. Detector; 13. Collimator; 14. Laser. Specific embodiments

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present disclosure.

[0032] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure shall have the ordinary meanings understood by those of ordinary skill in the art to which the present disclosure belongs. The "first", "second", and similar terms used in the present disclosure do not denote any order, quantity, or importance, but are only used to distinguish different components. The terms such as "include" or "comprise" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects.

[0033] Referring to Figure 1-7 as shown, a gas pipeline leakage space radar scanning device includes a laser 14, a collimator 13, a detector 12, a focusing mirror 11, and a control system 10 electrically connected to the laser 14 and the detector 12 respectively. The laser detector 3 emits light rays, which are scattered after passing through the target gas and received by the focusing mirror 11. However, a single laser detector 3 can only emit one beam, and only one plane can be detected when it moves. When the gas is above or below the detection plane, the laser detector 3 cannot detect it, or even if the laser detector 3 adjusts its angle, there is still a certain probability that the flowing gas cannot be detected. The following devices are needed to solve the above problems.

[0034] The laser detector 3 is arranged on an adjustable base 1, and the laser detector 3 is connected to the adjustable base 1 through an adjusting bracket 4. The adjustable base 1 is provided with a slideway 2, and the laser detector 3 can detect gases in the leakage space of the gas pipeline with multiple layers and dimensions on the adjustable base 1.

[0035] By arranging the laser detectors 3 in different sliding ways, gases on multiple layers can be detected, preventing omission of target gas detection.

[0036] Or by adding a beam light shaping device 9 at the end of the collimator 13, the laser emitted can be scattered through the beam light shaping device 9, and gases in the leakage space of the gas pipeline with multiple layers and dimensions can be detected.

[0037] For example, in the gas pipeline leakage space radar scanning device provided in an embodiment of the present disclosure, the slideway 2 extends to both ends of the side wall of the adjustable base 1, and the slideway 2 is provided with an adjusting bracket 4 that can slide along the slideway 2.

[0038] When installing the adjusting bracket 4, it can enter from one side of the adjustable base 1 along the slideway 2. The installation is convenient and the adjustment is simple.

[0039] For example, in the gas pipeline leakage space radar scanning device provided in an embodiment of the present disclosure, grooves 5 are provided on both sides of the inner wall of the slideway 2, and bumps 7 are provided at the connection between the adjusting bracket 4 and the slideway 2. The grooves 5 on both sides of the inner wall of the slideway 2 correspond to the bumps 7 on the adjusting bracket 4.

[0040] The grooves 5 and the bumps 7 can prevent the adjusting bracket 4 from shaking up and down, so that the adjusting bracket 4 is relatively fixed to the adjustable base 1.

[0041] For example, in the gas pipeline leakage space radar scanning device provided by an embodiment of the present disclosure, the adjustment bracket 4 includes a fixing part 4-2 and a sliding part 4-1 connected to the fixing part 4-2. The sliding part 4-1 is embedded in the slideway 2 and slides along the slideway 2. The fixing part 4-2 is provided with a fixing groove, and fixing holes 6 are arranged on both sides of the fixing groove. The laser detector 3 is arranged in the fixing groove and is fixedly connected by bolts.

[0042] The sliding part 4-1 slides along the slide, driving the fixing part 4-2 and the laser detector 3 on the fixing part 4-2 to move together.

[0043] For example, in the gas pipeline leakage space radar scanning device provided by an embodiment of the present disclosure, the laser detector 3 is in a horizontal linear shape, a vertical linear shape or an inclined linear shape. It can realize simultaneous detection in the horizontal, vertical or inclined directions.

[0044] For example, in the gas pipeline leakage space radar scanning device provided by an embodiment of the present disclosure, the laser detector 3 is circular, rectangular or elliptical.

[0045] It can realize the detection of an area and space, preventing detection omissions.

[0046] For example, in the gas pipeline leakage space radar scanning device provided by an embodiment of the present disclosure, multiple groups of the laser detectors 33 are spatially distributed, and spatial multi-dimensional scanning can be performed when the multiple groups of the laser detectors 33 move in the direction perpendicular to the scanning direction.

[0047] For example, in the gas pipeline leakage space radar scanning device provided by an embodiment of the present disclosure, the light shaping device 9 can be selected to be a cylindrical mirror scattering, a grating interference, a single-hole or a slit diffraction to realize the spatial distribution of the detection beam.

[0048] For example, in the gas pipeline leakage space radar scanning device provided by an embodiment of the present disclosure, the light beam shaping device 9 includes a housing 8. One end of the housing 8 is threadedly connected to the laser detector 3, and the other end of the housing 8 is the emission window of the laser detector 3.

[0049] The following points need to be explained:

[0050] 1. In the drawings of the embodiments of the present disclosure, only the structures related to the embodiments of the present disclosure are involved, and other structures can refer to the general design.

[0051] 2. Without conflict, the features in the same embodiment and different embodiments of the present disclosure can be combined with each other.

[0052] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of changes or substitutions, which should all be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

1. A space radar scanning device for gas pipeline leakage, comprising a plurality of laser detectors, wherein the laser detector consists of a laser, a collimator, a detector, a focusing mirror and a control system electrically connected to the laser and the detector respectively, and is characterized in that, The laser detector is arranged on an adjustable base. The laser detector is connected to the adjustable base through an adjusting bracket. The adjustable base is provided with a slideway. Gas detection in the leakage space of the gas pipeline in multiple layers and dimensions is realized on the adjustable base by means of the multiple laser detectors; The slideway extends to the side wall of the adjustable base at both ends. An adjusting bracket that can slide along the slideway is arranged on the slideway; Grooves are arranged on both sides of the inner wall of the slideway. Protrusions are arranged at the connection of the adjusting bracket and the slideway. The grooves on both sides of the inner wall of the slideway correspond to the protrusions on the adjusting bracket; The adjusting bracket includes a fixed part and a sliding part connected to the fixed part. The sliding part is embedded in the slideway and slides along the slideway. A fixed groove is arranged on the fixed part. Fixed holes are arranged on both sides of the fixed groove. The laser detector is arranged in the fixed groove and fixedly connected by bolts; The laser detector is in a horizontal one - character shape, a vertical one - character shape or an inclined one - character shape to realize simultaneous detection in the horizontal, vertical or inclined directions; The laser detector is circular, rectangular or oval; Multiple groups of the laser detectors are spatially distributed. When multiple groups of the laser detectors move in the direction perpendicular to the scanning direction, spatial multi - dimensional scanning can be performed.

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